M. D. Hossen, M. M. Islam, M. J. Ahmed, M. A. Kabir, M. N. Khan, and P. K. Roy, “Complexation Study of 18-Crown-6 with Alkali Metal Ions in Ethanol + Water Binary Mixtures by Conductometric Technique and Assessment of Thermodynamic Parameters”, ajc, vol. 38, no. 4, pp. 1052–1058, Apr. 2026.